Having just got the full game today, the first thing I did was connect to some servers and have a good fight. Great fun, but then I joined a server with an interesting feature...

It wasn't lag, because everyone was doing this and was still slashing/jumping etc at normal speed, but running only moved you forward REALLY slowly! You know those dreams everyone gets when you're trying to run away/toward something, and you only move a millimetre? It was just like that!